owner of the login session, see geteuid (2) and sd_pid_get_ownerowner of the login session, see geteuid (2) and sd_pid_get_ownerowner of the login session, see geteuid (2) and sd_pid_get_ownerowner of the login session, see geteuid (2) and sd_pid_get_ownerowner of the login session, see geteuid (2) and sd_pid_get_ownerowner of the login session, see geteuid (2) and sd_pid_get_owner